A world-city may stay undefeated.Logical formLearned from3 sentences. Champions can be undefeated in qualifying.Logical formLearned from3 sentences. A person can be undefeated for some years.Logical formLearned from3 sentences. Innings can be undefeated.Logical formLearned from3 sentences. A female can be undefeated in competition.Logical formLearned from3 sentences. A country can be undefeated in some (home ties).Logical formLearned from3 sentences. A (league season) can be undefeated.Logical formLearned from3 sentences. A team can be undefeated through an event.Logical formLearned from3 sentences. A (middleweight prospect) can be undefeated.Logical formLearned from3 sentences. A lightning can be undefeated.Logical formLearned from3 sentences. A series can be undefeated for a season.Logical formLearned from3 sentences. A group may stage undefeated.Logical formLearned from3 sentences. Champion can be undefeated.Logical formLearned from3 sentences. A side can be undefeated in some matches.Logical formLearned from3 sentences. Innings can be undefeated.Logical formLearned from3 sentences.